A method of rate control of a display device includes receiving compressed stress data for a slice of a display, decompressing the compressed stress data to obtain reconstructed stress data for the slice, adding additional stress data to the reconstructed stress data to obtain updated stress data for the slice, encoding the updated stress data at a first precision level (pc) to generate first updated compressed stress data for the slice, in response to a size (bc) of the first updated compressed stress data for the slice of the display exceeding a size (bt) of a buffer, determining a second precision level (p) based on the first precision level (pc), a third precision level (ps) of the additional stress data, and a fourth precision level (pb) of the buffer, and encoding the updated stress data at the second precision level (p) to generate second updated compressed stress data.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method of claim 1, wherein determining the second precision level (p) comprises setting the second precision level (p) to be equal to [(pc−pm)bt/bc]+pm, wherein pm is a minimum of the third precision level (ps) and the fourth precision level (pb).
4. The method of claim 1, wherein determining the second precision level (p) comprises setting the second precision level (p) to be equal to pc bt/bc.
5. The method of claim 1, wherein the first precision level (pc) is a precision level used to generate the compressed stress data.
6. The method of claim 1, further comprising adding dither, in addition to the additional stress data, to the reconstructed stress data to obtain the updated stress data for the slice.
9. The display device of claim 8, wherein the processor is further configured to determine the second precision level (p) by setting the second precision level (p) to be equal to [(pc−pm)bt/bc]+pm, wherein pm is a minimum of the third precision level (ps) and the fourth precision level (pb).
11. The display device of claim 8, wherein the processor is further configured to determine the second precision level (p) by setting the second precision level (p) to be equal to pc bt/bc.
12. The display device of claim 8, wherein the first precision level (pc) is a precision level used to generate the compressed stress data stored in the buffer.
13. The display device of claim 8, further comprising a dithering circuit configured to add dither, in addition to the additional stress data, to the reconstructed stress data to obtain the updated stress data for the slice.
14. The display device of claim 8, further comprising a memory controller configured to store the second updated compressed stress data in the buffer.
16. The non-transitory computer readable medium of claim 15, wherein the computer code, when executed on the processor, determines the second precision level (p) by setting the second precision level (p) to be equal to [(pc−pm)bt/bc]+pm, wherein pm is a minimum of the third precision level (ps) and the fourth precision level (pb).
18. The non-transitory computer readable medium of claim 15, wherein the first precision level (pc) is a precision level used to generate the compressed stress data.
19. The non-transitory computer readable medium of claim 15, wherein the computer code, when executed on the processor, further implements the method by adding dither, in addition to the additional stress data, to the reconstructed stress data to obtain the updated stress data for the slice.
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May 27, 2021
April 9, 2024
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